package CardDemo;

import java.util.ArrayList;
import java.util.List;
import java.util.Random;

public class CardDemo {
    public static final  String[] suits ={"♥","♣","♦","♠"};
    public List<Card>buyCard(){
        List<Card> cardList =new ArrayList<>();
        for (int i = 0; i <=13; i++) {
            for (int j=0;j<4;j++){

                int rank =i;
                String suit = suits[j];
                Card card =new Card(suit,rank);
                cardList.add(card);

            }
        }
        return  cardList;
    }
    public void shuffle(List<Card> cardList){
        Random random =new Random();
        for (int i = cardList.size()-1; i >0 ; i--) {
            int index =random.nextInt(i);
            swap(cardList,i,index);
        }
    }
    public void swap(List<Card>cardList,int i,int j){
        Card tmp =cardList.get(i);
        cardList.set(i,cardList.get(j));
        cardList.set(j,tmp);
    }
    public  List<List<Card>> play(List<Card>cardList){
        List<Card>hand0 =new ArrayList<>();
        List<Card>hand1 =new ArrayList<>();
        List<Card>hand2 =new ArrayList<>();

        List<List<Card>>hand =new ArrayList<>();
        for (int i = 0; i < 5; i++) {
            for(int j=0;j<3;j++){
                Card card =cardList.remove(0);
                //怎么把对应的牌，放到对应的人手中
                hand.get(j).add(card);
            }
        }
        return  hand;
    }
}
